Pneumatic stacker.



PATENTED FEB. 17, 1903.

0. P. JENSEN.-

PNEUMATIG STAGKER.

APPLICATION FILED JULY 10, 1902. no MODEL. 2 SHEETS-SHEET 1.

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messes lad/5 .fizzrfl/nwm/ No.720,69'7. v 'PATENTED PEB. I7,1903.

" 0. P. JENSEN.

PNEUMATIC STAGKER.

APPLICATION FILED JULY 10, 1902.

' N0 MODEL. Z'SHEBTS-BHEET 2.

UNlTED STATES PATENT OFFICE.

CLAUS PETER JENSEN, OLARKS GROVE, MINNESOTA.

PNEUMATIC -STACKER.

SPECIFICATION forming part Of Letters Patent No. 720,697, dated February17, 1903.

Application filed July 101 1902- Serial No. 115,058. (No model.)

To all whom it may concern:

Be it known that I, OLAUs PETER JENSEN, a citizen of the UnitedStates,residing at Clarks Grove, in the county of Freeborn and State ofMinnesota, have invented certain new and useful Improvements inPneumatic Stackers; and I do hereby declare the following to be a full,clear, and exact description of the invention, such as will enableothers skilled in the art to which it appertains to make and use thesame.

My present invention relates to pneumatic stackers for separators orthreshing machines, and has for its object to provide means whereby thestraw and the chaif or finely-broken material may be separated anddischarged at different points outside of the machine.

To the above ends the invention consists of the novel devices andcombinations of devices hereinafter described, and defined in the claim.

The invention is illustrated in the accompanying drawings,wherein likecharacters indicate like parts throughout both views.

Figure 1 is a view, partly in side elevation and partly in verticalsection, showing the rear portion of a separator or threshing-machinehaving applied thereto my improved pneumatic stacking device involving apair of blowers which receive difierent portions of the stock anddeliver the same at different points outside of the machine,'some partsof the said devices being broken away; and Fig. 2 is a rear endelevation of the parts shown in Fig. 1, some parts being removed andothers being broken away.

The parts of the separator or threshingmachine shown may be brieflynoted, as follows:

The numeral 1 indicates the case of the separator, the numeral 2 one ofthe supporting-trucks, the numeral 3 the straw-rake or delivery device,the numerals 4 and 5 the vibrating screens, and the numeral 6 thetailings-spout, which parts are ofthe ordinary standard construction andare shown for the purposes of illustration only.

In accordance with my invention I provide a pair of independent fans,one of .which receives the straw from the straw-rake or delivery device3 and delivers the same at a suitable point exterior of the machine andthe other of which fans receives the chafi and delivers the same toanother point or place exterior of the machine.

' It is a well-known fact that the so-called chaff, which consistschiefly of finelybroken straw, carries with it or contains more or lessof the grain which is being threshed. With the ordinary pneumaticstacker this chaff, together with the grain carried therewith, isdelivered'into the stack with the main body of the straw, and hence iswasted. By my invention I separate the chaff and the grain carriedtherewith from the body of the straw by the use of a secondary orauxiliary fan, arranged as above described. This having been done, thegrain can be quite easily separated from the chaff and saved in thisway, or the whole body of chaff, together with the grain, may be fed tostock, in which case it is also saved or put to profitable use.

In the drawings the primary blower is made up of a fan-case a and a fana, mounted therein. The fan-case a is open at its inner side and has ahood a which joins the upper portion of the rear end of the case 1 in.

position to receive the main body of straw, which is delivered thereintofrom the strawrakes 3. A discharging-stack a of ordinary or any suitableconstruction is connected to the fan-case a, preferably by a swiveledjoint 0. The shaft of the fan a is provided with a pulley a Thesecondary blower is made up of afan-case b and a fan b, mounted therein.The fan-case b is located in a vertical position just below the fan-casea. It is'open at its inner side and provided with a hood or hopper-likeextension 5 which stands in position to receive the chad which is drawnfrom the screens 5. The fan is provided with a shaft which carries apulley b and the fan-case b is provided with a laterally-extendingdischarging-stack b, which preferably delivers the chaff at one side ofthe machine.

Mounted on one side of the case 1 in suitable bearings is acounter-shaft f, which is provided at its rear end with pulleys f f Thetwisted belt 9 runs over the pulleys a and f, and a belt g runs over thepulleys b and f The counter-shaft f is driven in any suitable way,preferably from some of the ICO running parts of the thresher mechanism,and it is of course evident that the two fans a and Z) will receivetheir proper rotary movements from the said shaftf through the belts gand g. e

The operation of my improved double blower or pair of independentblowers is of course obvious from the foregoing description andstatements made, and it will also be understood that the devicedescribed is capable of many modifications within the scope of myinvention as herein set forth and claimed.

What I claim, and desire to secure by Letters Patent of the UnitedStates, is as follows:

The combination with a separator involving the straw-delivery rake 3 andscreens 5, of the primary blower made up of the case (I,

and fan a, and the secondary blower madeup of the case Z2 and fan I),said case abeing opened at its inner side and provided with the hood areceiving from said rake a and said case Z) having the hood I)receiving. from said screens 5, the said two fan-cases being setvertically in approximately the same plane and having straw-deliverystacks or tubes delivering to different places exterior of the machine,substantially as described.

In testimony whereof I affix my signature in presence of two witnesses.

CLAUS PETER JENSEN.

Witnesses:

J. L. INGBRITSON, HERMAN BLACKMER.

